43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
#pragma once
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#include "std.h"
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#define __optime_print(opname, t) \
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char tnames[3][3]={"s\0","ms","us"}; \
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i32 tni=0; \
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if(t>1000000){ \
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t/=1000000; \
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tni=0; \
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} else if(t>1000){ \
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t/=1000; \
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tni=1; \
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} else tni=2; \
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kprintf("\e[93moperation \e[94m%s\e[93m lasted \e[94m%f \e[93m%s\n", \
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opname, t, tnames[tni]); \
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fflush(stdout);
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#ifdef CLOCK_REALTIME
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/// executes codeblock and prints execution time
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/// u64 op_i is counter of the internal loop
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/// uses non-standard high-precision clock
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#define optime(opname, repeats, codeblock...) { \
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struct timespec start, stop; \
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clock_gettime(CLOCK_REALTIME, &start); \
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for(u64 op_i=0;op_i<(u64)repeats;op_i++) \
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{ codeblock; } \
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clock_gettime(CLOCK_REALTIME, &stop); \
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f64 t=(f64)(stop.tv_sec-start.tv_sec)*1000000+(f64)(stop.tv_nsec-start.tv_nsec)/1000; \
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__optime_print(opname,t); \
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}
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#else
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/// uses standard low precision clock
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#define optime(opname, repeats, codeblock...) { \
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clock_t start=clock(); \
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for(u64 op_i=0;op_i<(u64)repeats;op_i++) \
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{ codeblock; } \
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clock_t stop=clock(); \
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f64 t=(f64)(stop-start)/CLOCKS_PER_SEC*1000000; \
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__optime_print(opname,t); \
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}
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#endif
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